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u-boot/arch/arm/lib/bootm-fdt.c

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arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
/*
* Copyright (c) 2013, Google Inc.
*
* Copyright (C) 2011
* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
* - Added prep subcommand support
* - Reorganized source - modeled after powerpc version
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
*
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-08 07:37:19 +00:00
* SPDX-License-Identifier: GPL-2.0+
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
*/
#include <common.h>
#include <fdt_support.h>
arch/arm/lib/bootm-fdt.c: Guard the include of <asm/armv7.h> With d6b72da0 we started including this file unconditionally. This isn't allowed in a file that we also use on armv8. This will get cleaned up a bit better once we really start using these same features (and have similar fdt updates needed) on armv8. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-05-14 15:07:03 +00:00
#ifdef CONFIG_ARMV7_NONSEC
virt-dt: Allow reservation of secure region when in a RAM carveout In this case the secure code lives in RAM, and hence the memory node in the device tree needs to be adjusted. This avoids that the OS will map and possibly access the reservation. Add support for setting CONFIG_ARMV7_SECURE_RESERVE_SIZE to carve out such a region. We only support cutting off memory from the beginning or the end of a RAM bank as we do not want to increase their number (which would happen if punching a hole) for simplicity reasons This will be used in a subsequent patch for Jetson-TK1. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-04-21 05:18:32 +00:00
#include <asm/armv7.h>
arch/arm/lib/bootm-fdt.c: Guard the include of <asm/armv7.h> With d6b72da0 we started including this file unconditionally. This isn't allowed in a file that we also use on armv8. This will get cleaned up a bit better once we really start using these same features (and have similar fdt updates needed) on armv8. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-05-14 15:07:03 +00:00
#endif
ARM: PSCI: Rework the DT handler slightly The way the PSCI DT update happens currently means we pull in <asm/armv7.h> everywhere, including on ARMv8 and that in turn brings in <asm/io.h> for some non-PSCI related things that header needs to deal with. To fix this, we rework the hook slightly. A good portion of arch/arm/cpu/armv7/virt-dt.c is common looking and I hope that when PSCI is needed on ARMv8 we can re-use this by and large. So rename the current hook to psci_update_dt(), move the prototype to <asm/psci.h> and add an #ifdef that will make re-use later easier. Reported-by: York Sun <yorksun@freescale.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: York Sun <yorksun@freescale.com> Cc: Ian Campbell <ijc@hellion.org.uk> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: York Sun <yorksun@freescale.com>
2015-03-06 01:19:36 +00:00
#include <asm/psci.h>
arm64: add better and more generic spin-table support There are two enable methods supported by ARM64 Linux; psci and spin-table. The latter is simpler and helpful for quick SoC bring up. My main motivation for this patch is to improve the spin-table support, which allows us to boot an ARMv8 system without the ARM Trusted Firmware. Currently, we have multi-entry code in arch/arm/cpu/armv8/start.S and the spin-table is supported in a really ad-hoc way, and I see some problems: - We must hard-code CPU_RELEASE_ADDR so that it matches the "cpu-release-addr" property in the DT that comes from the kernel tree. - The Documentation/arm64/booting.txt in Linux requires that the release address must be zero-initialized, but it is not cared by the common code in U-Boot. We must do it in a board function. - There is no systematic way to protect the spin-table code from the kernel. We are supposed to do it in a board specific manner, but it is difficult to predict where the spin-table code will be located after the relocation. So, it also makes difficult to hard-code /memreserve/ in the DT of the kernel. So, here is a patch to solve those problems; the DT is run-time modified to reserve the spin-table code (+ cpu-release-addr). Also, the "cpu-release-addr" property is set to an appropriate address after the relocation, which means we no longer need the hard-coded CPU_RELEASE_ADDR. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-27 10:31:05 +00:00
#include <asm/spin_table.h>
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
DECLARE_GLOBAL_DATA_PTR;
libfdt: Introduce new ARCH_FIXUP_FDT option Add new Kconfig option to disable arch_fixup_fdt() calls for cases where U-Boot shouldn't update memory setup in DTB file. One example of usage of this option is to boot OS with different memory setup than U-Boot use. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-07-28 07:06:41 +00:00
#ifdef CONFIG_ARCH_FIXUP_FDT
ARM: convert arch_fixup_memory_node to a generic FDT fixup function Some architecture needs extra device tree setup. Instead of adding yet another hook, convert arch_fixup_memory_node to be a generic FDT fixup function. [maz: collapsed 3 patches into one, rewrote commit message] Signed-off-by: Ma Haijun <mahaijuns@gmail.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-07-12 13:24:06 +00:00
int arch_fixup_fdt(void *blob)
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
{
bd_t *bd = gd->bd;
ARM: HYP/non-sec/PSCI: emit DT nodes Generate the PSCI node in the device tree. Also add a reserve section for the "secure" code that lives in in normal RAM, so that the kernel knows it'd better not trip on it. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-07-12 13:24:07 +00:00
int bank, ret;
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
u64 start[CONFIG_NR_DRAM_BANKS];
u64 size[CONFIG_NR_DRAM_BANKS];
for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
start[bank] = bd->bi_dram[bank].start;
size[bank] = bd->bi_dram[bank].size;
virt-dt: Allow reservation of secure region when in a RAM carveout In this case the secure code lives in RAM, and hence the memory node in the device tree needs to be adjusted. This avoids that the OS will map and possibly access the reservation. Add support for setting CONFIG_ARMV7_SECURE_RESERVE_SIZE to carve out such a region. We only support cutting off memory from the beginning or the end of a RAM bank as we do not want to increase their number (which would happen if punching a hole) for simplicity reasons This will be used in a subsequent patch for Jetson-TK1. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-04-21 05:18:32 +00:00
#ifdef CONFIG_ARMV7_NONSEC
ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
if (ret)
return ret;
#endif
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
}
ARM: HYP/non-sec/PSCI: emit DT nodes Generate the PSCI node in the device tree. Also add a reserve section for the "secure" code that lives in in normal RAM, so that the kernel knows it'd better not trip on it. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-07-12 13:24:07 +00:00
ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
if (ret)
return ret;
arm64: add better and more generic spin-table support There are two enable methods supported by ARM64 Linux; psci and spin-table. The latter is simpler and helpful for quick SoC bring up. My main motivation for this patch is to improve the spin-table support, which allows us to boot an ARMv8 system without the ARM Trusted Firmware. Currently, we have multi-entry code in arch/arm/cpu/armv8/start.S and the spin-table is supported in a really ad-hoc way, and I see some problems: - We must hard-code CPU_RELEASE_ADDR so that it matches the "cpu-release-addr" property in the DT that comes from the kernel tree. - The Documentation/arm64/booting.txt in Linux requires that the release address must be zero-initialized, but it is not cared by the common code in U-Boot. We must do it in a board function. - There is no systematic way to protect the spin-table code from the kernel. We are supposed to do it in a board specific manner, but it is difficult to predict where the spin-table code will be located after the relocation. So, it also makes difficult to hard-code /memreserve/ in the DT of the kernel. So, here is a patch to solve those problems; the DT is run-time modified to reserve the spin-table code (+ cpu-release-addr). Also, the "cpu-release-addr" property is set to an appropriate address after the relocation, which means we no longer need the hard-coded CPU_RELEASE_ADDR. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-27 10:31:05 +00:00
#ifdef CONFIG_ARMV8_SPIN_TABLE
ret = spin_table_update_dt(blob);
if (ret)
return ret;
#endif
ARMv8/PSCI: Fixup the device tree for PSCI Set the enable-method in the cpu node to PSCI, and create device node for PSCI, when PSCI was enabled. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2016-06-28 12:18:16 +00:00
#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI)
ARM: PSCI: Rework the DT handler slightly The way the PSCI DT update happens currently means we pull in <asm/armv7.h> everywhere, including on ARMv8 and that in turn brings in <asm/io.h> for some non-PSCI related things that header needs to deal with. To fix this, we rework the hook slightly. A good portion of arch/arm/cpu/armv7/virt-dt.c is common looking and I hope that when PSCI is needed on ARMv8 we can re-use this by and large. So rename the current hook to psci_update_dt(), move the prototype to <asm/psci.h> and add an #ifdef that will make re-use later easier. Reported-by: York Sun <yorksun@freescale.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: York Sun <yorksun@freescale.com> Cc: Ian Campbell <ijc@hellion.org.uk> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: York Sun <yorksun@freescale.com>
2015-03-06 01:19:36 +00:00
ret = psci_update_dt(blob);
ARM: move #ifdef to match the error handling code Match the #ifdef ... #endif and the code, ret = do_something(); if (ret) return ret; This will make it easier to add more #ifdef'ed code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-17 12:51:48 +00:00
if (ret)
return ret;
ARM: HYP/non-sec/PSCI: emit DT nodes Generate the PSCI node in the device tree. Also add a reserve section for the "secure" code that lives in in normal RAM, so that the kernel knows it'd better not trip on it. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-07-12 13:24:07 +00:00
#endif
ARM: move #ifdef to match the error handling code Match the #ifdef ... #endif and the code, ret = do_something(); if (ret) return ret; This will make it easier to add more #ifdef'ed code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-06-17 12:51:48 +00:00
return 0;
arm: Use image_setup_linux() instead of local code Use the common FDT setup function that is now available in image. Move the FDT-specific code to a new bootm-fdt.c and remove unused headers from bootm.c. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-08 08:06:03 +00:00
}
libfdt: Introduce new ARCH_FIXUP_FDT option Add new Kconfig option to disable arch_fixup_fdt() calls for cases where U-Boot shouldn't update memory setup in DTB file. One example of usage of this option is to boot OS with different memory setup than U-Boot use. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-07-28 07:06:41 +00:00
#endif
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